Hello,
Below is a one line patch to possibly fix this bug:
http://bugs.gentoo.org/show_bug.cgi?id=178585
http://bugzilla.kernel.org/show_bug.cgi?id=8075
If the kernel is configured with:
CONFIG_X86_POWERNOW_K8=y
CONFIG_X86_ACPI_CPUFREQ=m
Which is currently an allowed configuration, the powernow-k8 driver on
an SMP system will fail with a warning like:
powernow-k8: Found 4 Dual Core AMD Opteron(tm) Processor 285 processors (version 2.00.00)
powernow-k8: MP systems not supported by PSB BIOS structure
powernow-k8: MP systems not supported by PSB BIOS structure
powernow-k8: MP systems not supported by PSB BIOS structure
powernow-k8: MP systems not supported by PSB BIOS structure
Which mimics that failure you get when powernow/cool'n'quiet is disabled
in the BIOS. I don't know if this config combination is valid on a
uniprocessor system so this dependency may need to be enforced only if
SMP in enabled. The other powernow-* drivers likely have the same
requirements as -k8 but I am unable to test them.
Signed-off-by: Joshua Hoblitt <[email protected]>
--
Kconfig | 1 +
1 file changed, 1 insertion(+)
--- linux-2.6.21.1.orig/arch/i386/kernel/cpu/cpufreq/Kconfig 2007-04-27 11:49:26.000000000 -1000
+++ linux-2.6.21.1/arch/i386/kernel/cpu/cpufreq/Kconfig 2007-05-15 14:48:50.000000000 -1000
@@ -82,6 +82,7 @@ config X86_POWERNOW_K8
tristate "AMD Opteron/Athlon64 PowerNow!"
select CPU_FREQ_TABLE
depends on EXPERIMENTAL
+ depends on X86_ACPI_CPUFREQ
help
This adds the CPUFreq driver for mobile AMD Opteron/Athlon64 processors.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
